.284 Winchester Reamer Question(s).....

[brxbrad]

I need experienced opinions please. The plan:
Straight Winchester .284 using Bartlein Barrel 7mm 5R x 32" Finished, .277/.284 Bore/Groove x 1-9 Twist - Taper Barrel already ordered and on its way.
I will be using Lapua 6.5-284 brass necked up using the K&M 7mm expander mandrel.
Load development will be done using H4350 and Tula LRM primers.
Question:
Maybe this is asking too much but......I want to be able to use 180grain VLD's, Hybrid's or Sierra MK's.
From what I've read, some say .190 for VLD's and .210-.220 for Hybrids and not much info on Sierra's.
I'm thinking .210.....
What free bore will work the best overall?
Please, I need experienced Opinions......

 

[Sling]

I am running the same reamer Bryan Litz is running. Dave @ PTG said to run the Lapua 6.5x284 necked up with no turn, .188 FB for 180gr Hybrid. It has worked out perfect. 56.0 gr H-4831SC,CCI BR primer is giving me around 5/8" 5 shot group @ 300yds. Hope this helps.

 

[brxbrad]

I'll take all the information I can get. Isn't this a great forum.......
Keep it coming.

Brad

 

[Erik Cortina]

I have loaded all the bullets you talked about, .220" freebore is ideal for all of them.

 

[brxbrad]

Thanks Eric,
I have one question....ha...There is always one more question.....As the throat erodes, Will I be able to chase it up to 2500 rounds? I know there is a lot to consider but.......
Oh by the way, Are you still using my Excel Worksheet for load development?

 

[Jay Christopherson]

I have loaded all the bullets you talked about, .220" freebore is ideal for all of them.

I'd go with what Eric said. My reamer had .190" (180 VLD) and I wish it had been a bit longer. It shoots fine, but being able to seat them out a bit further from the get-go would be ideal.

 

[Erik Cortina]

Thanks Eric,
I have one question....ha...There is always one more question.....As the throat erodes, Will I be able to chase it up to 2500 rounds? I know there is a lot to consider but.......
Oh by the way, Are you still using my Excel Worksheet for load development?

Yes, you'll be able to chase the lands just fine.

Not using the spreadsheet, too smart for me! LOL